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[gregh42]

I recently purchased the DI-655. I am having an odd problem. I get a connection speed of 135 mbps using wireless n from my laptop, which is a 1T2R mini card (msi).  When trying to copy files I max out at around a 2 MB/s rate. This seems about what I would get using wireless B on a good day, not at all acceptable. When I plug my laptop in directly via a wired 100 mbps connection, I get around 10 MB/s which seems fine. When I copy between two gigabit computers on the network I average around 50 MB/s which is not bad.  So if I connect with the wire things are just fine, but wireless is extremely slow.

I would expect at least an 8 MB/s over wireless N with a 135 mbps connection (and ideally, double that).  Is there some kind of setting I need to tweak on the router or the network card? The reason I got this router was so I could play HD video wirelessly, which I am currently unable to do.

My environment:
- DIR-655 running version 1.20 firmware
- Connected to a gigabit dlink switch
- 2 computers connected at 1gb to router
- wireless n minicard connected at 135 mbps on average

[EddieZ]

OS please.

If Vista: See MS

[gregh42]

OS please.

If Vista: See MS

I'm dual booting Windows XP and Windows 7 (beta) with the latest drivers for my network card on both.  I have the same problem regardless of OS. I'm going to try using a wireless g usb adapter to see if I can rule out the card or not. 

Thanks.

[EddieZ]

With 135 mbit you will get around 6-8 Mb/s. Tops.

[wiak]

try channel 1
some channels are faster than others
also update your drivers to
and if you have vista it might cap the bandwith to 5% when playing video/audio do this http://support.microsoft.com/kb/948066
if that dosnt work try this instead
http://s3.nwgat.net/VistaSlowNetworkFix.zip
on both systems

[gregh42]

OK I've managed to try a few more things and some of the suggestions (thanks to all).

I tried another network card tonight that is a Wireless G and got the same basic result, around 2MB/sec max on a file copy. This was using a laptop (running XP) with a Wireless G connection. To rule out Vista, I've been copying only from Windows 2003 Server to Windows XP. (On a related note, I tried the registry fix on Vista but it didn't change anything).

Tried to copy FROM the wireless as the source (same file) and got a rate of 3 MB/sec.  Seems odd that it was that much faster.

I forced the router channel to 1 and got it up to about 2.5 MB/sec when copying from the wired machine to the laptop.

It's odd that regardless of what I connect at at (135 mbps or 54 mbps) I still get about the same transfer rate.  I still think there is something odd going on, and it all seems to point to the router.  I'd like to see it around 8 MB/sec which doesn't seem unreasonable based on other feedback I've read about this router.

Any other thoughts / suggestions?

[ttmcmurry]

On a really really good day (mind you I'm in a NYC apartment and there are many many MANY wireless access points in range 30+)....

I can get 6.25MB/sec (50mbit/sec) to/from a D-Link DNS-323 NAS over an Intel 4965AGN laptop adapter (130mbit carrier).  Usually data transfers hover around 3MB/sec (24mbit/sec).

When plugging in with a gigabit Intel NIC, It goes up to about 10MB/sec (80mbit/sec) on the same NAS.  Presently I'm running Windows Seven Beta 1.